Namangan viloyati davlatobod tumani 53-umumiy o`rta ta’lim maktabining

8-nazorat test javoblari

Savol	1	2	3	4	5	6	7	8	9	10
Javob
Savol	11	12	13	14	15	16	17	18	19	20
Javob

SANA_____________________________

1-Labaratoriya mashg’uloti
Mavzu:Abiotik omillarning tirik organizmlarga ta’sirini o‘rganish.
Laboratoriya mashg‘ulotining maqsadi: muhit omillari: yorug‘lik, nam lik, tuproq tarkibining tirik organizmlarga ta’sir qilishini aniqlash, tirik organizmlarga abiotik omil larning ta’sirlarini tahlil qilish.
Kerakli jihozlar: yorongul yoki koleus o‘simliklarining (yoki boshqa xona o‘simliklari) novdalari, gultuvaklar.
Ishning borishi:
1. Ushbu tajriba biologiya xonasida laboratoriya mashg‘uloti o‘tkaziladigan kundan bir yarim oy avval qo‘yiladi va o‘quvchilarning kuzatishi tashkil etiladi.
2. Bir tup xona o‘simligidan bir xil ko‘lamdagi to‘rt dona uchtadan bo‘g‘imi bo‘lgan yon novdalarini kesib oling. Yuqori bo‘g‘imdagi bargni qoldirib, pastki bo‘g‘imlardagi barglarni kesib tashlang. Novdalarni ildiz chiqarguncha suvga solib qo‘ying. Ildizlar 2 sm ga yetgach, 1- va 2-novdalarni oddiy tuproq solingan gultuvaklarga, 3- va 4-novdalarni esa chirindiga boy tuproq solingan gultuvaklarga eking. 1- va 3-gultuvaklardagi o‘simliklarni janubga qaragan derazalarga qo‘ying.
2- va 4-gultuvaklardagi o‘simliklarni derazadan 3–4 metr uzoqqa joylashtiring. Birinchi uch kunlikda barcha o‘simliklarni ko‘p miqdorda sug‘oring. Keyinchalik 1- va
3-gultuvaklardagi o‘simliklar yetarli miqdorda sug‘oring, 2- va 4-gultuvaklardagi o‘simliklarni normadan kamroq sug‘oring.
3. O‘simliklarning o‘sishi va rivojlanishi ustida kuzatish olib boring. Kuzatish natijalarini har hafta jadvalga yozib boring.
Jadval. Abiotik omillarning o‘simlik o‘sishi va rivojlanishiga ta’siri.

Kuzatilgan natijalar		Tajriba variantlari
		1-novda	2-novda		3-novda		4-novda
O‘simlik o‘sgan muhit sharoiti
O‘simlikning bo‘yi	1-hafta
	2-hafta
Barglar soni	1-hafta
	2-hafta
Barglarning o‘lchami	1-hafta
	2-hafta
Barglarning rangi	1-hafta
	2-hafta

4. Besh haftadan so‘ng o‘tkazilgan tajriba yuzasidan xulosa chiqaring.

Xulosa ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
5. Quyidagi savollarga javob bering.
1) Muhit sharoiti qanday abiotik omillar bilan farqlanadi? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
2) Tuproq, relyef, shamol kabi omillar namlik va haroratning taqsimlanishiga qanday ta’sir ko‘rsatadi? Misollar keltiring. _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
3) Tuproqning sho‘rlanishi, kislorodga boyligi ekosistemaning holatiga qanday ta’sir ko‘rsatadi? _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
4) Quyidagi omillarni uch toifaga – abiotik, biotik, antropogen omillarga ajrating: yirtqichlilik, o‘rmonni kesish, havoning namligi, havo harorati, parazitizm, yorug‘lik, binolar qurish, atmosfera bosimi, zavodlardan karbonat angidrid gazining havoga chiqarilishi, suvning sho‘rligi.

Abiotik	Biotic	antropogen

5) Qulay mikroiqlim yaratish orqali inson turli harorat sharoitlarida, Antarktidaning sovuq qish sharoitida, kosmosning qahraton sovug‘ida ham yashab, ishlay oladi. Harorat inson uchun cheklovchi omil bo‘la olmaydi degan xulosa chiqarish mumkinmi? _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

6) Berilgan ekologik omillarni klasterda ifodalang.
1. Tuproq omillari. 2. Bakteriyalar. 3. Iqlim omillari. 4. Insonning biogeotsenozga bevosita ta’siri. 5. Zamburug‘lar. 6. Topografik omillar. 7. O‘simliklar.
8. Insonning biogeotsenozga bilvosita ta’siri. 9. Fizik omillar. 10. Hayvonlar.

EKOLOGIK OMILLAR
Abiotik omillar	Biotic omillar	Antropogen omillar